package cn.eric.game.swing;

import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class TestTextArea {
	   private JFrame mainFrame;
	   private JLabel headerLabel;
	   private JLabel statusLabel;
	   private JPanel controlPanel;

	   public TestTextArea(){
	      prepareGUI();
	   }

	   public static void main(String[] args){
		  TestTextArea swingControlDemo = new TestTextArea();      
	      swingControlDemo.showTextAreaDemo();
	   }

	   private void prepareGUI(){
	      mainFrame = new JFrame("Java Swing Examples");
	      mainFrame.setSize(400,400);
	      mainFrame.setLayout(new GridLayout(3, 1));
	      mainFrame.addWindowListener(new WindowAdapter() {
	         public void windowClosing(WindowEvent windowEvent){
	            System.exit(0);
	         }        
	      });    
	      headerLabel = new JLabel("", JLabel.CENTER);        
	      statusLabel = new JLabel("",JLabel.CENTER);    

	      statusLabel.setSize(350,100);

	      controlPanel = new JPanel();
	      controlPanel.setLayout(new FlowLayout());

	      mainFrame.add(headerLabel);
	      mainFrame.add(controlPanel);
	      mainFrame.add(statusLabel);
	      mainFrame.setVisible(true);  
	   }

	   private void showTextAreaDemo(){
	      headerLabel.setText("Control in action: JTextArea"); 

	      JLabel  commentlabel= new JLabel("Comments: ", JLabel.RIGHT);

	      final JTextArea commentTextArea = 
	         new JTextArea("This is a Swing tutorial "
	         +"to make GUI application in Java.",5,20);

	      JScrollPane scrollPane = new JScrollPane(commentTextArea);    

	      JButton showButton = new JButton("Show");

	      showButton.addActionListener(new ActionListener() {
	         public void actionPerformed(ActionEvent e) {     
	            statusLabel.setText( commentTextArea.getText());        
	         }
	      }); 

	      controlPanel.add(commentlabel);
	      controlPanel.add(scrollPane);        
	      controlPanel.add(showButton);
	      mainFrame.setVisible(true);  
	   }
}
